• | Perform the Diagnostic System Check - Vehicle prior to using the diagnostic procedure. |
• | Review Strategy Based Diagnosis for an overview of the diagnostic approach. |
• | Diagnostic Procedure Instructions provides an overview of each diagnostic category. |
When the ignition switch is turned to ON, the sensing and diagnostic module (SDM) will perform turn-on test to diagnose critical malfunctions within the SDM itself.
Ignition voltage is between 9-16 volts.
The history of the 1st stage air bag inflation or the belt pretensioner explosion is in the SDM.
The SDM commands ON the AIR BAG warning lamp.
The condition responsible for setting the DTC no longer exists and the scan tool Clear DTCs function is used.
Note: When removing connectors inspect for damage or corrosion. Damage or corrosion in the following requires repair or replacement of the affected component/connector.
• The I/P module • The SDM module • The I/P wiring harness connector • The SDM wiring harness connector
⇒ | If DTC B1650 was current replace the SDM. |
Perform the Diagnostic Repair Verification after completing the diagnostic procedure.
Control Module References for SDM replacement, setup, and programming